Abstract: Systems and methods are provided for monitoring auditory stimulation provided to a listener through a personal listening device. In one example, a method includes monitoring one or more acoustic profile parameters of an audio signal received from an audio source and rendered on a headphone assembly based on one or more received transducer parameters of one or more transducers of the headphone assembly; monitoring one or more listener-headphone engagement parameters based on headphone position data from a sensor coupled to the headphone assembly; and adjusting the audio signal and/or acoustic stimulation based on the monitoring of the one or more acoustic profile parameters and the monitoring of one or more listener-headphone engagement parameters, wherein the one or more listener-headphone engagement parameters include a current engagement status of the headphone assembly with respect to the user and a duration of active engagement of the headphone assembly with respect to the user.

Abstract: A wearable device for attachment to the ear of a user can comprise an earpiece including a speaker and a body section including a hook for attachment about the ear of a user. The length of the earpiece can be adjusted. The earpiece can rotate relative to the body section. The point of rotation can be located within a region defined by the perimeter of the concha of the ear of a user. The wearable device can comprise magnetic elements configured to magnetically couple through the user's ear to retain the wearable device in place. A magnetometer which is configured and arranged to detect a degree of magnetic coupling between the magnetic elements is disclosed.

Abstract: A speaker comprises a housing, a transducer residing inside the housing, and at least one sound guiding hole located on the housing. The transducer generates vibrations. The vibrations produce a sound wave inside the housing and cause a leaked sound wave spreading outside the housing from a portion of the housing. The at least one sound guiding hole guides the sound wave inside the housing through the at least one sound guiding hole to an outside of the housing. The guided sound wave interferes with the leaked sound wave in a target region. The interference at a specific frequency relates to a distance between the at least one sound guiding hole and the portion of the housing.

Abstract: A convertible head wearable audio device is provided that may include a headband having a first earpiece at a first end and a receptacle at a second end. The convertible head wearable audio device may also include a wireless interface. The wireless interface may be configured to communicatively couple the convertible head wearable audio device to a remote device. The convertible head wearable audio device may further include an active noise cancellation module. The active noise cancellation module may be configured to reduce ambient noise from an audio output of the convertible head wearable audio device.

Abstract: An eyewear interface assembly for facilitating a hands-free interface with a personal electronic device includes a pair of eyeglasses that can be worn on a user for vision correction. The pair of eyeglasses includes a frame which comprises a pair of lens loops and a pair of arms each hingedly coupled to a respective lens loop. A pair of lenses is each positioned in a respective one of the lens loops and each of the lenses has a transparent display integrated therein to display indicia to the user. A transceiver is integrated into the pair of eyeglasses to receive an audio signal and a video signal from a personal electronic device. A pair of ear buds is each coupled to the pair of eyeglasses to be positioned in a respective one of the user's ears when the user wears the pair of eyeglasses.

Abstract: A ring-shaped earphone may be configured to be worn in an ear. When not worn in the ear, the ring-shaped earphone may be conveniently stored on a finger. In one example, the ring-shaped earphone may include a ring-shaped body defined by an outer cylindrical surface and an inner cylindrical surface. The earphone may include a speaker within the ring-shaped body. The speaker may be configured to project sound through a speaker opening in the outer cylindrical surface. The earphone may include a microphone within the housing. The microphone may be configured to receive sound through a microphone opening in the inner cylindrical surface.

Abstract: In some examples, an audio sending device receives a stream of application audio data, encodes the stream of application audio data, and in response to detecting an end of the stream of application audio data, provides pre-encoded filler audio data from a buffer in the audio sending device as an encoded stream of filler audio data. The audio sending device transmits the encoded stream of application audio data and the encoded stream of filler audio data in an encoded output data stream over a transport to an audio receiving device.

Abstract: The pilot microphone cover for reducing ambient noise comprises an enclosure, an audio aperture, and a pair of sound redirection ridges. The pilot microphone cover may attenuate ambient noise to reduce interference with voice communication within a cockpit of an airplane. The pilot microphone cover may be used for anyone who wears a headset in a high wind environment, including but not limited to, ground support, staff, crew, etc. The enclosure may be adapted to cover a microphone of a headset. The enclosure may block the ambient noise while allowing the microphone to pick up sounds that originate in front of the microphone and that enter the enclosure through the audio aperture. The pair of sound redirection ridges may further attenuate the ambient noise originating above and below the microphone.

Abstract: An earphone comprising: a device housing that defines an internal cavity within the device housing; an acoustic port formed through a wall of the device housing and having an opening at an exterior surface of the device housing; an audio driver disposed within the device housing and aligned to emit sound through the acoustic port; and a mesh disposed within the acoustic port and having an outer periphery spaced apart from the device housing wall, wherein the mesh forms a portion of an exterior surface of the earphone that is recessed from the opening at the exterior surface of the device housing.

Abstract: A noise sensor is disposed adjacent a speaker within an ear cup of a hearing protection device. The speaker is disposed within a speaker housing and the noise sensor is disposed within a sensor housing, the sensor housing coupled to the speaker housing such that the noise sensor and speaker remain adjacent one another. The noise sensor includes at least a microphone operably coupled to a printed circuit board. The sensor housing defines an axial bore such that the noise sensor can receive acoustic signals via the axial bore. The sensor housing can be coupled to the speaker housing such that the noise sensor is sealed therebetween and receives acoustic signals via a distal end of the axial bore opposite the speaker. A calibration tool can be disposed to the axial bore via the distal end for airtight calibration of the noise sensor.

Abstract: An earphone device includes a speaker unit, an inner housing body and an outer housing body. The inner housing body covers the speaker unit through an insert molding technique. The outer housing body covers the inner housing body through the insert molding technique.

Abstract: This disclosure includes several different features suitable for use in circumaural and supra-aural headphones designs. Designs that enhance user comfort and improve user control of the headphones are discussed. Various sensor configurations and electronic component positions are also discussed. User convenience features that include detachable cushions and automatically detecting the donning and doffing of headphones are also discussed.

Abstract: An accessory for wireless earbuds can include a first receiving portion defining a first cavity sized to receive and retain a first earbud and a second receiving portion defining a second cavity sized to receive and retain a second earbud. Each receiving portion can include a charging component to electrically couple with the respective earbud. The accessory can include a flexible portion connected to the first receiving portion and the second receiving portion, the flexible portion at least partially defining an internal volume, and a battery disposed in the internal volume and electrically coupled with the charging components.

Abstract: An earphone including a speaker that outputs sounds to a uniaxial direction; a sound guide tube offset from a center of the speaker to and disposed on one side of a direction orthogonal to the uniaxial direction, the sound guide tube extending to a direction parallel to the uniaxial direction; and a housing accommodating the speaker and supporting a base end of the sound guide tube, wherein the housing is broadened from the base end to other side opposite to the one side, toward a location where the speaker is accommodated, and has an inclined surface that inclines at the broadened location, and a separation distance between a central axis of the speaker and a central axis of the sound guide tube is smaller than an internal radius of the sound guide tube.

Abstract: Noise-canceling audio devices may include a first vibration member, a second vibration member, and a microphone supported by a housing. A feedback, noise-cancelation circuit may be operatively connected to the microphone, the feedback, noise-cancelation circuit configured to generate a first portion of a modified audio signal by combining an audio signal with a noise-canceling signal generated in response to a signal from the microphone to at least partially cancel at least a portion of an audible response of the second vibration member. A feed-forward, noise-cancelation circuit may be operatively connected to the microphone, the feed-forward, noise-cancelation circuit configured to compare the signal from the microphone to a predetermined SPL profile and generate a second portion of the modified audio signal configured to at least partially cancel environmental noise, the feedback, noise cancelation circuit configured to output the modified audio signal only to the first vibration member.

Abstract: The present disclosure discloses a hearing aid device. The hearing aid device may comprise at least one sound transmitter configured to collect a sound signal and convert the sound signal into an electrical signal, a signal processing circuit configured to generate a control signal by processing the electrical signal, at least one vibration loudspeaker configured to convert the control signal into a vibration signal, and a housing structure configured to accommodate at least one of the at least one sound transmitter, the signal processing circuit, or the at least one vibration loudspeaker, wherein the control signal may include an original signal and an air-conducted sound leakage signal generated from the at least one vibration loudspeaker, and a difference between the air-conducted sound leakage signal received by the at least one sound transmitter and the original signal may not be larger than ?33 dB.

Abstract: A speaker comprises a housing, a transducer residing inside the housing, and at least one sound guiding hole located on the housing. The transducer generates vibrations. The vibrations produce a sound wave inside the housing and cause a leaked sound wave spreading outside the housing from a portion of the housing. The at least one sound guiding hole guides the sound wave inside the housing through the at least one sound guiding hole to an outside of the housing. The guided sound wave interferes with the leaked sound wave in a target region. The interference at a specific frequency relates to a distance between the at least one sound guiding hole and the portion of the housing.

Abstract: Disclosed herein are proximity detection sensor arrangements, as well as related methods and devices. In some embodiments, a sensor arrangement in an electronic device may include a first circuit layer including a proximity pad and a first reference pad, and a second circuit layer including a second reference pad and a temperature pad. The first circuit layer may be between the second circuit layer and a user-facing surface of the electronic device, the first reference pad may be electrically coupled to the second reference pad, and the first reference pad may be between the temperature pad and the user-facing surface.

Abstract: A method of operating a headphone configured to be removed from and placed in close proximity to a user's ear can include generating an input signal by an input signal generating device. The method can also include determining whether an insertion event has occurred based on the generated input signal and causing the headphone to operate in 5 a low power mode responsive to an absence of an insertion event determination after a first period of time. The method can also include causing the headphone to operate in an ultra-low power mode responsive to the absence of an insertion event determination after a second period of time that occurs after the first period of time, the ultra-low power mode having a lower power consumption than the low power mode.

Abstract: Various implementations include headphone systems. In one implementation, a headband for a headphone system, includes: a continuous spring section sized to extend over a head of a user; an earcup mount coupled with an end of the continuous spring section, where the earcup mount allows for both translation and rotation of an earcup relative to the continuous spring section without altering a length of the continuous spring section; and a friction assembly spanning between the continuous spring section and the earcup mount.

Abstract: A headphone includes a base, an accommodating space, a bracket, a circuit board accommodated in the accommodating space, a signal cable, a microphone assembly accommodated in the accommodating space, and a sound chamber unit accommodated in the accommodating space. The base has a sidewall and an outer wall surrounding the accommodating space. A junction portion between the sidewall and the outer wall is recessed inward to form a recess. At least one connection wall has a through hole communicated with the accommodating space. The bracket is received in the recess. The bracket includes an outer cover and an inner cover. A cable path is formed between the outer cover and the inner cover. One end of the bracket has a guiding slot connected to the cable path. The guiding slot is corresponding to the through hole. The signal cable is arranged along the cable path.

Abstract: A voice enhancing device amplifies and clarifies the voice of a user with hypophonia or other voice issues. The device includes a collar of either rigid or a soft material that is shaped to comfortably sit on the shoulders of the user. One or more microphone arrays are adjustably mounted to the collar to capture audio of the user talking. An electronics module enhances the captured audio signal and generates an enhanced audio signal that drives at least one speaker adjustably attached to the collar. The electronic controller implements one or more of an AGC amplifier to correct amplitude variation in spoked words, adaptive filtering to actively filter out background noise, a variable attack and decay function to improve intelligibility of the spoken words, a diphthong modification function to clarify the spoken words, and an echo cancelation function to reduce echo and feedback in the enhanced audio.

Abstract: A headband structure of a headphone, including a headband assembly and a telescopic adjustment module, is provided. The headband assembly has a steel belt. The steel belt has multiple positioning slots. The telescopic adjustment module includes a fixing base, an elastic sheet, and a positioning ball. The fixing base is slidably disposed to the steel belt. The elastic sheet is disposed to the fixing base, and the elastic sheet has an accommodating groove. The positioning ball is disposed in the accommodating groove, and the positioning ball is located between the steel belt and the elastic sheet. The elastic sheet constantly pushes the positioning ball to keep the positioning ball in contact with the steel belt, and the positioning slots are located on moving paths of the positioning ball.

Abstract: This disclosure includes several different features suitable for use in circumaural and supra-aural headphones designs. Designs that enhance user comfort and improve user control of the headphones are discussed. Various sensor configurations and electronic component positions are also discussed. User convenience features that include detachable cushions and automatically detecting the donning and doffing of headphones are also discussed.

Abstract: The present disclosure discloses an acoustic output apparatus including at least one acoustic driver, a controller, and a supporting structure. The at least one acoustic driver may be configured to output sounds through at least two sound guiding holes. The at least two sound guiding holes may include a first sound guiding hole and a second sound guiding hole. The controller may be configured to control a phase and an amplitude of the sounds generated by the at least one acoustic driver using a control signal such that the sounds output by the at least one acoustic driver through the first and second sound guiding holes have opposite phases. The supporting structure may be provided with a baffle and configured to support the at least one acoustic driver such that the first and second sound guiding holes are located on both sides of the baffle.

Abstract: A wireless charging headphone (10) includes a headphone housing (1), a speaker module (2) and a ring-shaped wireless charging module (3). The headphone housing (1) includes a front housing (11) and a cavity (s), and the front housing (11) includes a plurality of acoustic holes (111). The speaker module (2) is received inside the cavity (s) and arranged corresponding to the plurality of acoustic holes (111). The ring-shaped wireless charging module (3) is received inside the cavity (s), and the ring-shaped wireless charging module (3) is arranged between the front housing (11) and the speaker module (2). Accordingly, the wireless charging headphone (10) is able to achieve the effects of excellent design, facilitated assembly and operation stability.

Abstract: A speaker comprises a housing, a transducer residing inside the housing, and at least one sound guiding hole located on the housing. The transducer generates vibrations. The vibrations produce a sound wave inside the housing and cause a leaked sound wave spreading outside the housing from a portion of the housing. The at least one sound guiding hole guides the sound wave inside the housing through the at least one sound guiding hole to an outside of the housing. The guided sound wave interferes with the leaked sound wave in a target region. The interference at a specific frequency relates to a distance between the at least one sound guiding hole and the portion of the housing.

Abstract: The present disclosure discloses a hearing aid device. The hearing aid device may comprise at least one sound transmitter configured to collect a sound signal and convert the sound signal into an electrical signal, a signal processing circuit configured to generate a control signal by processing the electrical signal, at least one vibration loudspeaker configured to convert the control signal into a vibration signal, and a housing structure configured to accommodate at least one of the at least one sound transmitter, the signal processing circuit, or the at least one vibration loudspeaker, wherein the control signal may include an original signal and an air-conducted sound leakage signal generated from the at least one vibration loudspeaker, and a difference between the air-conducted sound leakage signal received by the at least one sound transmitter and the original signal may not be larger than ?33 dB.

Abstract: Headsets of the inventive subject matter are configured to stand freely on an outer surface of an earcup, and they incorporate wireless charging in one or more earcups so that the headset can be wirelessly charged while resting on an outer surface of an earcup. To make this charging configuration possible, one or more holding mechanisms are implemented to couple one or both of the fork bodies (e.g., the structure to which an earcup is coupled) to the headband of a headset. Holding mechanisms of the inventive subject matter prevent the headset from toppling over while charging due to rotation of the headband relative to the earcup that the headset is resting on.

Abstract: The problem to be solved is to improve a noise cancelling function. A detection microphone, a speaker, and a housing are included. The detection microphone detects noise and has an input vibrating plate. The speaker has an output vibrating plate. The housing accommodates at least the speaker and the detection microphone therein. The input vibrating plate and the output vibrating plate are disposed approximately in the same orientation. This ensures that a sound is output from the speaker while a sound is input to the detection microphone with the input vibrating plate and the output vibrating plate facing each other, thus making it possible to bring the input vibrating plate and the output vibrating plate closer to each other. As a result, it is less likely for a phase lag to take place between the sound output from the speaker and the sound input to the detection microphone, thus providing higher noise detection accuracy of the detection microphone and contributing to an improved noise cancelling function.

Abstract: A vehicle speaker system uses a speaker system of a personal mobility device including a main body configured to generate power with a battery, a steering unit connected to the main body to regulate a driving direction and in which a speaker is installed, wheels installed on the main body and the steering unit and rotated by power generated from the main body, and a controller configured to control the speaker, wherein the speaker generates a virtual engine sound when driving.

Abstract: A speaker comprises a housing, a transducer residing inside the housing, and at least one sound guiding hole located on the housing. The transducer generates vibrations. The vibrations produce a sound wave inside the housing and cause a leaked sound wave spreading outside the housing from a portion of the housing. The at least one sound guiding hole guides the sound wave inside the housing through the at least one sound guiding hole to an outside of the housing. The guided sound wave interferes with the leaked sound wave in a target region. The interference at a specific frequency relates to a distance between the at least one sound guiding hole and the portion of the housing.

Abstract: A system and method of automatically alerting a user to remain awake is able to automatically notify a user of a head tilt or other malposition of their head indicative of falling asleep, thereby preventing the user from falling asleep while driving or performing any other task requiring an alert operator. The method is provided with a headset, at least one inclination sensor, and an alerting system, wherein the inclination sensor receives a plurality of head inclination readings. The method is further provided with an allowable range of head inclination managed by the controller, thereby allowing a head tilt to be detected based on at least one abnormal reading from the plurality of head inclination readings. The controller generates a sleep warning in response to the abnormal reading, whereby the sleep warning is subsequently output by the alerting system, whereby the sleep warning is rendered as an alarm or notification.

Abstract: A speaker comprises a housing, a transducer residing inside the housing, and at least one sound guiding hole located on the housing. The transducer generates vibrations. The vibrations produce a sound wave inside the housing and cause a leaked sound wave spreading outside the housing from a portion of the housing. The at least one sound guiding hole guides the sound wave inside the housing through the at least one sound guiding hole to an outside of the housing. The guided sound wave interferes with the leaked sound wave in a target region. The interference at a specific frequency relates to a distance between the at least one sound guiding hole and the portion of the housing.

Abstract: A speaker comprises a housing, a transducer residing inside the housing, and at least one sound guiding hole located on the housing. The transducer generates vibrations. The vibrations produce a sound wave inside the housing and cause a leaked sound wave spreading outside the housing from a portion of the housing. The at least one sound guiding hole guides the sound wave inside the housing through the at least one sound guiding hole to an outside of the housing. The guided sound wave interferes with the leaked sound wave in a target region. The interference at a specific frequency relates to a distance between the at least one sound guiding hole and the portion of the housing.

Abstract: Noise-canceling headphones may include a headband, an audio input, and earcups supported proximate ends of the headband. A first vibration member operatively connected to the audio input, a second vibration member operatively connected to the audio input, and a microphone may be supported by a housing of at least one of the earcups. A feedback, noise-cancelation circuit configured to reduce a user's perception of a portion of an audible response of the second vibration member may be operatively connected to the microphone. The feedback, noise-cancelation circuit may be configured to modify an audio signal from the audio input at least in part based on a signal from the microphone and send the modified audio signal to the first vibration member.

Abstract: Provided is a headphone device including: a pair of headphone units; a headband curved in the longitudinal direction and supporting the pair of headphone units at each end in the longitudinal direction; and a pair of slide mechanisms interposed between the headphone unit and the headband and relatively varying the distance between the headphone unit and the headband, wherein the slide mechanism includes a slide member and a slide guide holding member, the slide member has a pair of slide guides extending in the extending direction of the headband so as to face each other and a plurality of engaging portions are provided along the sliding direction of the slide guides on the side of at least one slide guide facing the other slide guide, and the slide guide holding member includes an engagement urging portion selectively engaged with one of the engaging portions and slidably holds the slide member.

Abstract: A method performed by an audio system that includes a headset. The method identifies a cushion that is coupled to a headset housing of the headset in which a speaker is integrated therein, produces a reference microphone signal from a reference microphone of the headset, selects an active noise cancellation (ANC) filter based on the identified cushion, filters the reference microphone signal with the ANC filter to produce an anti-noise signal, drives the speaker with the anti-noise signal, in response to driving the speaker, produces an error microphone signal from an error microphone of the headset, and performs an adaptive ANC function to adapt the ANC filter based on the reference microphone signal and the error microphone signal.

Abstract: This invention is a Sound Control Ear Cup in the form of an externally fitted ear cupping device fitted to the contour of the ear for the ear for the purpose of reproducing a sound to acoustically cancel out another sound and enable sonic (active noise control) treatment of tinnitus while sleeping facing the side pressing an ear against a sleeping surface. The Sound Control Ear Cup can also be used to protect hearing and/or cancel out ambient sound noise. The tinnitus treatment device is a pair of sound control ear cups optionally held together with a headset or head-strap. The hearing protection device is a pair of sound control ear cups optionally held together with a headset or head-strap.

Abstract: A personal audio device (e.g., headphones, earphones) can have an earpiece (e.g., an ear cup or earbud) with a removable cushioning member (e.g., headphone cushions or ear tips for earbuds). The cushioning member can include an identification tag that encodes identification data for the cushioning member. When the cushioning member is attached to the earpiece, the identification tag is brought into proximity with a tag sensor in the earpiece and the earpiece can read the identification tag to determine identification data for the cushioning member. The identification data can be used to modify a behavior of the earpiece and/or of a host device communicably coupled to the earpiece.

Abstract: An electronic device attachment system is described. The system includes an electronic device case configured to receive and house an electronic device. The electronic device is a smartphone, a laptop computer, a mobile media player, a tablet, or any other handheld electronic device. The system also includes a storage component affixed to the electronic device case either permanently or removably. The storage component is configured to receive and house one or more attachments when not in use.

Abstract: This disclosure includes several different features suitable for use in circumaural and supra-aural headphones designs. Designs that enhance user comfort and improve user control of the headphones are discussed. Various sensor configurations and electronic component positions are also discussed. User convenience features that include detachable cushions and automatically detecting the donning and doffing of headphones are also discussed.

Abstract: The present invention relates to an earphone cover and an earphone having the same. The earphone cover is used to be placed on the earphone, comprising a sleeve portion and a fixing portion for setting the earphone cover on the earphone. The fixing portion encloses the sleeve portion, and the sleeve portion penetrates the fixing portion. The fixing portion includes a first end portion and a second end portion opposite to the first end portion. When the earphone cover is built in the human ear, the first end portion and the second end portion are in contact with the ear bone to form at least three setting points. Thus, after the earphone cover is set on the earphone, the earphone cover and the ear bone form three fixed points when the earphone is fixed in the ear, then the earphone may be firmly fixed in the ear bone through the three fixed points, and hence is not easy to fall off.

Abstract: A wearable device for attachment to the ear of a user that includes a magnetic attachment system. The wearable device includes an earpiece including a speaker and a body section including a hook for attachment about the ear. First and second magnetic elements are provided on the earpiece and body. The earpiece is movable relative to the body section and the earpiece and body section are configured so that when the body section is hooked about the ear the magnetic elements are magnetically attracted to each other through the ear to retain the device in place.

Abstract: The present disclosure provides an acoustic output apparatus including one or more status sensors, at least one low-frequency acoustic driver, at least one high-frequency acoustic driver, at least two first sound guiding holes, and at least two second sound guiding holes. The status sensors may detect status information of a user. The low-frequency acoustic driver may generate at least one first sound, a frequency of which is within a first frequency range. The high-frequency acoustic driver may generate at least one second sound, a frequency of which is within a second frequency range including at least one frequency exceeding the first frequency range. The first and second sound guiding holes may output the first and second spatial sound, respectively. The first and second sound may be generated based on the status information, and may simulate a target sound coming from at least one virtual direction with respect to the user.

Abstract: According to the present invention, an apparatus, a signal processing unit, data, a processing apparatus, a sound converter, a software product and a method are proposed. The apparatus is proposed for acoustic reproduction, wherein the apparatus is provided with a first electroacoustic sound transducer for generating a sound field, the first electroacoustic sound transducer having an input for receiving an electrical signal for generating the corresponding sound field, wherein the apparatus is characterized in that also a device is provided which is configured to enter into an acoustic interaction with the generated sound field of the first electroacoustic sound transducer in order to generate a modified sound field and wherein the modified sound field has a predetermined acoustic impedance value.

Abstract: The present disclosure provides a terminal device, a wireless headset, and an electronic device component. The terminal device includes: a body, a magnetic component, and a first controller. An accommodating groove for accommodating the wireless headset is disposed on the body. The magnetic component is at least partially disposed in the accommodating groove. The first controller is disposed in the body and electrically connected to the magnetic component, and is configured to control the magnetic component to connect to the wireless headset by attraction or to separate from the wireless headset by repulsion.

Abstract: An apparatus for reducing cross-talk between transmitted audio signals and received audio in a headset. The headset includes one or more of a set of earphones, a headset frame, a microphone boom with an array of MEMS microphone configured to isolate the earphone audio from the microphone audio, a VOX circuit, low crosstalk cable(s), and/or other components. Sets of microphones may be enabled and/or disabled to reduce cross-talk between received audio signals and transmitted audio signals. The VOX circuit is configured to reduce cross-talk between received audio signals and transmitted audio signals.

Abstract: This invention relates to a birthing sensor (1) for mounting on the tail of a pregnant animal. The birthing sensor comprises a casing (3) and an adjustable strap (5) for securing the casing to the tail of the pregnant animal. The casing houses monitoring equipment, communication equipment and a power supply. There is provided a padding insert (7, 37, 47) for location between the casing, the strap and the animal's tail. The padding insert comprises a sheet of resiliently deformable material, such as rubber, having a plurality of ventilation passageways formed therein. The ventilation passageways allow passage of air over the cow's tail underneath the sensor and further allow escape of urine and faeces from under the sensor. The passageways may be formed by having a plurality of upstanding bosses (9) on the surface of the padding insert and the passageways are the spaces between these upstanding bosses (9).

Abstract: A convertible head wearable audio device is provided that may include a headband having a first earpiece at a first end and a receptacle at a second end. The convertible head wearable audio device may also include a wireless interface. The wireless interface may be configured to communicatively couple the convertible head wearable audio device to a remote device. The convertible head wearable audio device may further include an active noise cancellation module. The active noise cancellation module may be configured to reduce ambient noise from an audio output of the convertible head wearable audio device.